Hydraulic Fitting, 3/4"X3/4" CAT Flange

The 12GS-12FLC Hydraulic Fitting (3/4" x 3/4" CAT Flange) is a Gates® GlobalSpiral coupling built for extremely high-pressure, high-impulse spiral-wire hydraulic hose assemblies. Its two-piece, no-skive design enables faster, made-to-order hose builds while helping reduce labor, odor, fabrication errors, and potential contamination from skiving. GlobalSpiral thread ends are rated to handle working pressures up to 6,000 psi, and the fitting is protected with TuffCoat plating for corrosion resistance that’s more than five times better than the SAE ASTM B117 specification.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 12GS-12FLC
• Brand / Series: Gates® GlobalSpiral
• Product Type: Hydraulic coupling / fitting
• Connection Type: CAT flange
• Size: 3/4" x 3/4"
• Design: Two-piece, no-skive
• Pressure Capability: Up to 6,000 psi (GlobalSpiral thread ends)
• Corrosion Protection: TuffCoat plating (enhanced corrosion resistance)
• Flange Nominal Size: 3/4 in
• Flange Thickness: 0.56 in
• Flange Outside Diameter: 1.63 in
• Hose ID (Side 1): 3/4 in
• Overall Length: 5.71 in
• Cutoff Length: 3.7 in
• Thread Configurations (Series Availability): 80+ thread configurations across the GlobalSpiral coupling line

Ideal For

• High-pressure, high-impulse hydraulic hose assemblies using spiral-wire hose
• Shops wanting faster builds with a no-skive coupling to reduce assembly time and errors
• Equipment needing a 3/4" CAT flange connection with defined flange dimensions
• Applications where corrosion resistance is important (TuffCoat plated hardware)
• Hydraulic systems where minimizing contamination risk during assembly matters